SpongeBob is a good-natured, naive, and enthusiastic sea sponge. He resides in the undersea city of Bikini Bottom with other anthropomorphic aquatic creatures.SpongeBob's hobbies include fishing for jellyfish, practicing karate with his friend Sandy Cheeks (a squirrel from Texas), and blowing bubbles. His often-overt optimistic attitude makes him ignorant to negativity from others. He believes, for instance, that Squidward Tentacles enjoys his company even though he was clearly annoyed by SpongeBob's behavior in most scenarios.